UK shipping group James Fisher has warned of the risk to its contract with the European Maritime Safety Agency (EMSA) from a no-deal Brexit.
The company currently has a deal in place to provide emergency pollution response for the agency should an accident occur in the UK, Ireland or north-western Europe.
The shipowner said it had assessed the risk to its contract as medium to high if the UK crashed out of the European Union without a withdrawal agreement on 29 March.
"The group has been assessing the implications and potential mitigating actions of a no-deal scenario," it said.
"EMSA, post-Brexit, may choose to use EU vessels or companies to provide this service."
In terms of compliance, certification and visas for EU nationals, it views administrative risks as "low".
"We anticipate a pragmatic solution even in the event of a no-deal Brexit, although time and costs may increase," it added.
And in terms of currency exposure, the risk is assessed as medium.
The group's main exposure is to the US dollar and following the Brexit vote, sterling sharply weakened against the US dollar.
"This has been beneficial to the group's sales and profits and there is a risk of this reversing after 29 March," it said.
"The group reduces earnings volatility by taking out forward contracts for 40% to 60% of its exposure and this partly mitigates the risk."
